Base | Representation |
---|---|
bin | 100100111101… |
… | …0001110110111 |
3 | 1100110100112202 |
4 | 1021322032313 |
5 | 14430000111 |
6 | 1531135115 |
7 | 323453654 |
oct | 111721667 |
9 | 40410482 |
10 | 19375031 |
11 | aa33825 |
12 | 65a449b |
13 | 4024b20 |
14 | 2804c2b |
15 | 1a7ab3b |
hex | 127a3b7 |
19375031 has 16 divisors (see below), whose sum is σ = 21762048. Its totient is φ = 17128800.
The previous prime is 19375007. The next prime is 19375043. The reversal of 19375031 is 13057391.
It is not a de Polignac number, because 19375031 - 26 = 19374967 is a prime.
It is a super-2 number, since 2×193750312 = 750783652501922, which contains 22 as substring.
It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 19374985 and 19375003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19375061) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52610 + ... + 52976.
It is an arithmetic number, because the mean of its divisors is an integer number (1360128).
Almost surely, 219375031 is an apocalyptic number.
19375031 is a deficient number, since it is larger than the sum of its proper divisors (2387017).
19375031 is a wasteful number, since it uses less digits than its factorization.
19375031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 542.
The product of its (nonzero) digits is 2835, while the sum is 29.
The square root of 19375031 is about 4401.7077367767. The cubic root of 19375031 is about 268.5844109921.
The spelling of 19375031 in words is "nineteen million, three hundred seventy-five thousand, thirty-one".
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